@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  .site-header {
    padding: 1.2rem 0;
  }

  .site-logo a {
    font-size: 1.5rem;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 1rem;
  }

  .section.head h1 {
    font-size: 2.8rem;
  }

  .section.head p {
    font-size: 1rem;
  }

  .section header h2 {
    font-size: 2.2rem;
  }

  .footer-columns {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-links ul {
    flex-direction: column;
    gap: 1rem;
  }
}